Fatal error: Uncaught Error: Using $this when not in object context in /volume1/web/packages/system/panels/cms/child.pylon.tpl.php on line 5

Error: Using $this when not in object context in /volume1/web/packages/system/panels/cms/child.pylon.tpl.php on line 5

Call Stack:
    0.0003     360640   1. {main}() /volume1/web/packages/system/panels/cms/090_tools/pylon.tpl.php:0
    0.0004     361264   2. include('/volume1/web/packages/system/panels/cms/child.pylon.tpl.php') /volume1/web/packages/system/panels/cms/090_tools/pylon.tpl.php:2